<template>
  <el-menu
    default-active="1-4-1"
    class="el-menu-vertical-demo"
    @open="handleOpen"
    @close="handleClose"
    background-color="#545c64"
    text-color="#fff"
    active-text-color="#ffd04b"
    :collapse="isCollapse"
  >
  <h3>{{isCollapse?'后台':'通用后台管理系统'}}</h3>
    <el-menu-item  v-for="item in  noChildren" :key="item.name" :index="item.name" @click="clickMenu(item)">
      <i :class="`el-icon-${item.icon}`"></i>
      <span slot="title">{{item.label}}</span>
    </el-menu-item>
    <el-submenu v-for="item in hasChildren" :key="item.lable" :index="item.lable">
      <template slot="title">
        <i :class="`el-icon-${item.icon}`"></i>
        <span slot="title">{{item.label}}</span>
      </template>
      <el-menu-item-group v-for="subItem in item.children" :key="subItem.path">
        <el-menu-item :index="subItem.path"  @click="clickMenu(subItem)">{{subItem.label}}</el-menu-item>
      </el-menu-item-group>
    </el-submenu>
  </el-menu>
</template>
<script>
import Cookie from 'js-cookie'
export default {
  data() {
    return {
      // menuData: [
        // {
        //   path: "/",
        //   name: "home",
        //   label: "首页",
        //   icon: "s-home",
        //   url: "Home/Home",
        // },
        // {
        //   path: "/mall",
        //   name: "mall",
        //   label: "商品管理",
        //   icon: "video-play",
        //   url: "MallManage/MallManage",
        // },
        // {
        //   path: "/user",
        //   name: "user",
        //   label: "用户管理",
        //   icon: "user",
        //   url: "UserManage/UserManage",
        // },
        // {
        //   label: "其他",
        //   icon: "location",
        //   children: [
        //     {
        //       path: "/page1",
        //       name: "page1",
        //       label: "页面1",
        //       icon: "setting",
        //       url: "Other/PageOne",
        //     },
        //     {
        //       path: "/page2",
        //       name: "page2",
        //       label: "页面2",
        //       icon: "setting",
        //       url: "Other/PageTwo",
        //     },
        //   ],
        // },
      // ],
    };
  },
  methods:{
    handleOpen(key, keyPath) {
        console.log(key, keyPath);
      },
      handleClose(key, keyPath) {
        console.log(key, keyPath);
      },
      clickMenu(items){  
      if((this.$route.path!==items.path)&&!(items.path==='/'&&this.$route.path==='/home'))
      {
         this.$router.push(items.path)
      }
      // 方法1
      // this.$bus.$emit("soot",items.lable)

      //方法2
      this.$store.commit('hoot',items)
  },
},
  computed:{
    //没有子菜单
    noChildren(){
      return this.menuData.filter(item=>!item.children)
    },
     hasChildren(){
      return this.menuData.filter(item=>item.children)
    },
    isCollapse(){
    return this.$store.state.tab.isCollapse
  },
  menuData(){
   return JSON.parse(Cookie.get('menu'))||this.$store.state.tab.menu
  }
  }
};
</script>
<style>
body html{
  margin: 0;
  padding: 0;
}
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  min-height: 400px;
}
.el-menu{
  height: 100vh;
  overflow: hidden;
  border-right:none !important;
}
aside{
  overflow:hidden !important;
  width: auto !important;
}
h3{
  color:#fff;
  text-align: center;
  line-height: 48px;
  font-size: 16px;
  font-weight: 400;
}
</style>